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<p>[QUOTE=&quot;BadThad, post: 1283726, member: 17261&quot;]&quot;Bronze disease&quot; is simply another name for verdigris. It has three stages: light, moderate and heavy. Heavy verdigris generally should not be removed because the result will be a completely stripping of the patina, loss of detail and pits. </p><p><br /></p><p>Light and moderate verdigris are fairly easy to address with VERDI-CARE. Acetone (or other organic solvents) will not remove verdigris regardless of how long you soak. Olive oil is somewhat effective, but the acids will harm the coin and it can take months to work. It also tends to leave behind red spots in the areas of the corrosion.[/QUOTE]</p><p><br /></p>

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